The California State Lands Commission proposes to readopt emergency regulations that amended Article 4.7 of Chapter 1, Division 3 of Title 2 of the California Code of Regulations.
This emergency rule requires vessels with ballast water sourced from waters with a measured salinity of less than 18 parts per thousand (ppt; i.e., 18 grams of salt per kilogram of water) to conduct ballast water exchange prior to discharging at California’s fresh and brackish water. This requirement is in addition to meeting existing California ballast water discharge performance standards (Performance Standards; Title 2, Cal. Code Regs. Section 2293).